Sunrise, sunset. Perhaps a matchmaker would have helped. The saga of the dispute between Ventas, Inc. and Health Care Property Investors, Inc. arose five years ago when Sunrise Senior Living Real Estate Investment Trust’s "board of trustees determined that a strategic sale process of its assets would be beneficial to its unitholders, thus effectively putting Sunrise ‘in play’ on the public markets" (per Blair J.A. for the Ontario Court of Appeal) in Ventas, Inc. v.